Solution : https://service.sap.com/sap/support/notes/1157651 (SAP Service marketplace login required)
Key words : 
rsz tables storing parts, 0 bi            import support package 18, symptom accessing bw, prerequisites program error, support package, bi-patch 18, sapbinews bi 7, query definition, function rsz_x_component_get, call stack
Related Notes : 
       
| 1412808 | Database deadlock in the table RSZCOMPDIR | 
| 1327741 | Precalculation of data may cause deadlocks in RSZELTDIR | 
| 1147123 | Report QUERY_CHECK may cause deadlocks in RSZ* tables | 
| 1136882 | SAPBINews NW7.0 BI Support Package 18 | 
| 1097674 | NW2004s: Administration of backup object version | 
| 949330 | NW04s: Query backup & restore |